Novel Liquid Crystalline Structure in Langmuir Monolayers of Amphiphilic Azobenzene Derivative

Yuka Tabe, Hiroshi Yokoyama

研究成果: Article

28 引用 (Scopus)

抜粋

Depolarized Brewster-angle microscopy revealed a novel two-dimensional (2D) mesophase in Langmuir monolayers of 4-octyl-4'-(3-carboxytrimethyleneoxy) azobenzene, characterized by ubiquitous schlieren textures resulting from the long-range order of in-plane molecular orientations. The lack of half-integral strength disclinations and the presence of a regular array of π-walls, across which the in-plane orientation changes by 180 degrees, indicate the vectorial nature of the underlying order parameter. The monolayer can, therefore, be viewed as a single layer of a bulk smectic C phase or as a 2D polar nematic phase, except for the obvious absence of mirror symmetry with respect to the layer plane. In contrast to the experience with bulk liquid crystalline phases, higher-order point disclinations were often found stable in the monolayer.

元の言語English
ページ(範囲)2472-2476
ページ数5
ジャーナルjournal of the physical society of japan
63
発行部数7
DOI
出版物ステータスPublished - 1994 1 1
外部発表Yes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

フィンガープリント Novel Liquid Crystalline Structure in Langmuir Monolayers of Amphiphilic Azobenzene Derivative' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

  • これを引用